<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>jQuery中append与appendTo区别</title>
    <meta charset="utf-8">
   
</head>
<body>
    <p>This is a paragraph.</p>
    <p>This is another paragraph.</p>
    <button id="append">在每个 p 元素的结尾添加内容append</button>
    <button id="appendTo">在每个 p 元素的结尾添加内容appendTo</button>
</body>
</html>